Update for the .NET Framework 3.5 on Windows 8, Windows 8.1, Windows Server 2012, and Windows Server 2012 R2

Notice

This article describes a dated update that is no longer needed or applicable to any current customer need. Please refrain from downloading and deploying this update. This article remains published as an archived reference only.

INTRODUCTION

This update resolves an issue that prevents the optional Microsoft .NET Framework 3.5 feature from being enabled after you install security update 2966827 or 2966828 (described in Microsoft Security Bulletin MS14-046) for the Microsoft .NET Framework 3.5.

This update applies to Windows 8, Windows Server 2012, Windows 8.1, and Windows Server 2012 R2.

Summary

Microsoft has released update 3005628 for the .NET Framework 3.5 on Windows 8, Windows Server 2012, Windows 8.1, and Windows Server 2012 R2.

• Individual, small-business, and organizational users should use the Windows automatic-updating feature to install the fixes from Microsoft Update. To do this, see Get security updates automatically.

• IT professionals should refer to the "Download information" and "Command-line switches for this update" sections.

Symptoms

After you install security update 2966827 or 2966828 (described in Microsoft Security Bulletin MS14-046) for the Microsoft .NET Framework 3.5 and then try to enable the optional Microsoft .NET Framework 3.5 feature in Windows Features for the first time, the feature may not be enabled.

When this problem occurs, you may receive an error message that resembles one of the following.

Cause

Security updates 2966827 and 2966828 (described in Microsoft Security Bulletin MS14-046) for the .NET Framework 3.5 require metadata that is added to the system only when the Microsoft .NET Framework 3.5 feature is enabled. Updates that apply to the .NET Framework 3.5 are meant to be installed only after the .NET Framework 3.5 feature is installed. This issue is also described in the following Microsoft Knowledge Base:

3002547 Enabling the Microsoft .NET Framework 3.5 optional Windows feature in Windows 8, Windows Server 2012, Windows 8.1, or Windows Server 2012 R2 may fail after you install security update 2966827 or 2966828

Resolution

To resolve this issue, install update 3005628.

Update 3005628 will remove security update 2966827 or 2966828 from any system that does not have the .NET Framework 3.5 feature content installed and present in Windows 8, Windows Server 2012, Windows 8.1, and Windows Server 2012 R2. Going forward, security updates 2966827 and
2966828 will be offered only to applicable systems that have the .NET Framework 3.5 feature enabled.

Customers who have security update 2966828 predeployed to their system by their device manufacturer or who have the security update predeployed by their system administrator by using "/StartComponentCleanup" and "/ResetBase" option of the Deployment Image Servicing and Management (DISM) tool should install update 3005628. See the "Download information" section for links to the appropriate updates.

Customers who receive and install update 3005628 from Microsoft Update channels do not have to take any additional action. Individual customers or IT professionals who decide to run update 3005628 manually or within their managed environments should refer to the "Download information" and "Command-line switches for this update" sections for more information.

More Information

The information in this article applies to the following:

• The Microsoft .NET Framework 3.5 on Windows 8, Windows Server 2012, Windows 8.1, and Windows Server 2012 R2.